21058218

素因数分解:

$2^1\times 3^4\times {\mathrm{43}}^1\times {\mathrm{3023}}^1$

素因数の和:3080

約数の個数: 40

約数和(自身を含む): 48299328

約数和(自身を除く): 27241110

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 81, 86, 129, 162, 258, 387, 774, 1161, 2322, 3023, 3483, 6046, 6966, 9069, 18138, 27207, 54414, 81621, 129989, 163242, 244863, 259978, 389967, 489726, 779934, 1169901, 2339802, 3509703, 7019406, 10529109, 21058218]

約数ペア:

[(1, 21058218), (2, 10529109), (3, 7019406), (6, 3509703), (9, 2339802), (18, 1169901), (27, 779934), (43, 489726), (54, 389967), (81, 259978), (86, 244863), (129, 163242), (162, 129989), (258, 81621), (387, 54414), (774, 27207), (1161, 18138), (2322, 9069), (3023, 6966), (3483, 6046)]